In the GPO of the endpoint, you can configure the "Automatic Updates detection frequency" which controls the synchronization between the Windows Update Agent to the WSUS.
This value can be configured to set the frequency of the sync for every 1 to 22 hours, but the actual time of the sync will be different.
From Microsoft -
"Specifies the hours that Windows will use to determine how long to wait before checking for available updates. The exact wait time is determined by using the hours specified here minus zero to twenty percent of the hours specified. For example, if this policy is used to specify a 20 hour detection frequency, all clients to which this policy is applied will check for updates anywhere between 16 and 20 hours."